Stress Distribution around a Crack Tip in Non-Hardening Materials under Plane Strain
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概要
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The plastic strain which relieves the stress concentration at the crack tip isassumed to be confined on the plane perpendicular to the crack plane. Thelocalized plastic strain was represented by an array of edge dislocations as a firstapproximation. In this model the stress distribution is obtained by a superposi-lion of stresses by the crack, the dislocations, and the interaction stress betweendislocations and crack. The stress near the crack tip was corrected by takingaccount of the blunting of crack tip. It was concluded thxt the maximum valueof the normal stress, or the hydrostatic component, in front of the crack tip is34 times tensile flow-stress of the material independent of the applied stressintensity.
- 社団法人日本物理学会の論文
- 1979-10-15
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